Dingoonity forum user alejandroliu has created a loader that lets you load firmware from ext sd card stock firmware or open dingux firmware details and downloads below.
Huge thanks to alejandroliu
Compatable for v1.0 & v2.0 & v2.1 v2.2 rs-97 systems.
*Important notes please make sure you use a genuine sd card class 10 and when Please make sure the sd card is formatted to fat32 32kb blocks in windows. Sometimes sd card readers can cause a problems try to change your sd card reader if you have problems.
Intructions
We have renamed all the folders on the server to make is easy
https://rs97.bitgala.xyz/04.%20os_images/Internal SD Card/So these can only be flashed to internal
Patched for Ext SD Loader/ So these can only be flashed to external
**NOTE** All future versions of 97Next will be released using this method. As its very easy and saves you having to open the device up there's no need to extend the partitions,No nagging screens when transferring files from pc also you can boot stock or 97Next just by inserting or removing the card. And with this method it will be compatible with all screens as it uses the stock firmware LCD driver.
#1) IF you already have done the rs97extloader mod, skip to step 9
#2) Make sure you have the default original firmware in the internal SD.
#3) Prepare another SD Card (size doesn't matter), format as FAT32, 32kb blocks, primary partition
#4) Download
https://github.com/RetroArcade97/rs97extloader/releases/download/0.90/rs97extloader-0.90.1.zip#5) Extract the zip in step 4 into the SD card you prepared at step 3
#6) Insert the SD card from step 5 into the RS-97's GBA cart/sd slot
#7) Turn on RS97 and go to file browser and navigate to external sd
#8) Run "install.dge"
#9) Prepare your SD card that you are going to use for your CFW. Format as FAT32, 32kb block size, primary partition
#10) Download
https://rs97.bitgala.xyz/04.%20os_images/Patched%20for%20Ext%20SD%20Loader/AutoExec/97Next_v1.5_EXT_SD_autoexec.7zhttps://www.dropbox.com/s/osgc0gk182i3xtk/97Next_v1.5_EXT_SD_autoexec.7z?dl=0#11) Extract zip from step 10 to step 9
#12) Done!
Duelboot instructions
turn on the device with the 97Next sdcard INSIDE the external slot to boot to 97Next
turn on the device with the 97Next sdcard OUT the external slot to boot to stock firmware.
Source Links
https://boards.dingoonity.org/ingenic-jz4760-devices/rs-97-firmware-loader/ changelog 97Next v1.5
fixed some icon paths and names renamed belo thanks to m1024
OpenTyrian
- filename typo in skins/Default/icons/, should be opentyrian.png instead of opentyyrian.png
- link config should use relative skin path instead of absolute game path (skin=skin:icons//opentyrian.png)
OpenJazz/TileWorld
- link config should use relative skin path instead of absolute path (skin=skin:icons//...)
- filename tileworld.png should be tworld.png to match the binary repository
DCastaway
- filename 'Atari ST.png' should be dcastaway.png to match the binary repository
updated new skin pack enhanced for new backdrops thanks m1024 great work
updated latest gmenunext 12-05-2018 supports backdrops & more thanks to pink_flood
ae4all updated button mapping mounting fixed thanks to Bob_fossil
Emulator and game backdrop images added in gmenunext i hope you all like them
gngeo fixed crash on start.
changed boot logo to 97Next thanks Hiei.
opendingux name changed to 97Next thanks to dingoonity & discord community.
added usbdrive icon thanks to ruffnutts.
added latest mame4all beta 12-05-2018 thanks to bob fossil.
fixed atari lynx crash.
Thanks to all that made it possible Steward-Fu & Tony-Jie
If you would like to donate and buy me a beer you can find the link in my signature all donations appreciated.